So far I have found no maximum level in the Swords and Souls flash game, however there are max levels to your abilities in Swords and Souls, sort of…

Basically, aspects of your abilities max out, for example, chance to doge can’t be leveled to 100%, chance to dodge can only be leveled to something like 35%, as with chance to block. Chance to shoot ranged weapon can go up to 50%. From there, you can still put points into leveling these skills, but you will only get extra health from doing so.